$108+ Cheap flights from Ontario (ONT) to Wisconsin
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Cheapest flights from Ontario to WisconsinExplore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
Explore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.
This Expedia deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Wed 7/2210:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/16![Frontier logo]()
$244
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:49 am
ONT
- MSP
1 stop8h 38m
Frontier
Wed 8/510:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/18![Frontier logo]()
$246
This Frontier deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:49 am
ONT
- MSP
1 stop8h 38m
Frontier
Tue 8/41:16 pm
MSP
- ONT
1 stop12h 34m
Frontier
Deal found 6/17![Frontier logo]()
$247
This Super.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Wed 8/1210:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/20![Frontier logo]()
$250
This Super.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:56 pm
ONT
- MSP
1 stop14h 09m
Frontier
Tue 8/259:57 pm
MSP
- ONT
1 stop14h 07m
Frontier
Deal found 6/20![Frontier logo]()
$251
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:40 pm
ONT
- MSP
1 stop28h 01m
Frontier
Wed 9/29:57 pm
MSP
- ONT
1 stop27h 58m
Frontier
Deal found 6/20![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:49 am
ONT
- MSN
1 stop6h 21m
Frontier
Tue 8/117:55 pm
MSN
- ONT
1 stop5h 55m
Frontier
Deal found 6/20![Frontier logo]()
$254
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:50 am
ONT
- MSP
1 stop20h 33m
Frontier
Wed 9/210:15 pm
MSP
- ONT
1 stop27h 34m
Frontier
Deal found 6/18![Frontier logo]()
$256
This Expedia deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Tue 7/2110:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/19![Frontier logo]()
$257
This Booking.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Tue 8/410:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/16![Frontier logo]()
$259
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Tue 8/189:57 pm
MSP
- ONT
1 stop27h 58m
Frontier
Deal found 6/18![Frontier logo]()
$260
This Super.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:16 am
ONT
- MSP
1 stop7h 45m
Frontier
Tue 10/610:58 am
MSP
- ONT
1 stop14h 57m
Frontier
Deal found 6/18![Frontier logo]()
$261
Best flights from Ontario to WisconsinDiscover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
Discover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 21, 2026.
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:49 am
ONT
- MSN
1 stop6h 21m
Frontier
Tue 8/117:55 pm
MSN
- ONT
1 stop5h 55m
Frontier
Deal found 6/20![Frontier logo]()
$254
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:10 am
ONT
- ORD
Nonstop4h 15m
United Airlines
Tue 7/218:18 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Deal found 6/16![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:06 pm
ONT
- ORD
1 stop6h 24m
Delta
Mon 8/242:00 pm
ORD
- ONT
2 stops10h 45m
Delta
Deal found 6/18![Delta logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:52 am
ONT
- ATW
1 stop25h 18m
Multiple Airlines
Mon 7/207:00 am
ATW
- ONT
1 stop27h 03m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1611:30 am
ONT
- MKE
1 stop8h 40m
Southwest
Wed 12/305:20 am
MKE
- ONT
1 stop6h 35m
Southwest
Deal found 6/19![Southwest logo]()
$386
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Tue 8/46:03 am
MSP
- ONT
1 stop9h 06m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$423
This KAYAK deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:59 pm
ONT
- MSP
1 stop7h 42m
American Airlines
Mon 7/137:15 pm
MSP
- ONT
1 stop6h 44m
American Airlines
Deal found 6/16![American Airlines logo]()
$471
This Frontier deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:49 am
ONT
- MSN
1 stop6h 21m
Frontier
Sun 8/167:55 pm
MSN
- ONT
1 stop5h 55m
Frontier
Deal found 6/20![Frontier logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:00 am
ONT
- MSN
1 stop6h 13m
United Airlines
Sat 8/293:55 pm
MSN
- ONT
1 stop8h 40m
United Airlines
Deal found 6/20![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:01 pm
ONT
- MSN
2 stops12h 15m
Delta
Sat 8/296:05 am
MSN
- ONT
2 stops8h 11m
Delta
Deal found 6/19![Delta logo]()
$342
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:00 pm
ONT
- ATW
1 stop8h 44m
Delta
Thu 8/275:31 am
ATW
- ONT
1 stop7h 11m
Delta
Deal found 6/20![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:25 pm
ONT
- MKE
2 stops7h 40m
Southwest
Tue 12/155:40 am
MKE
- ONT
2 stops9h 10m
Southwest
Deal found 6/19![Southwest logo]()
$396
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
ONT
- ORD
Nonstop4h 10m
United Airlines
Sat 9/125:30 pm
ORD
- ONT
Nonstop4h 27m
United Airlines
Deal found 6/18![United Airlines logo]()
$368
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:00 pm
ONT
- ATW
1 stop8h 44m
Delta
Tue 9/15:31 am
ATW
- ONT
1 stop7h 11m
Delta
Deal found 6/16![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:12 am
ONT
- MSP
1 stop7h 11m
Alaska Airlines
Wed 9/27:00 am
MSP
- ONT
1 stop9h 09m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:50 pm
ONT
- MSP
2 stops8h 09m
United Airlines
Sat 7/185:45 am
MSP
- ONT
2 stops8h 27m
United Airlines
Deal found 6/20![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/183:00 pm
ONT
- MKE
1 stop7h 25m
Southwest
Sat 7/255:45 am
MKE
- ONT
1 stop10h 35m
Southwest
Deal found 6/19![Southwest logo]()
$419
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:59 pm
ONT
- DLH
2 stops10h 16m
Delta
Mon 10/2612:00 pm
DLH
- ONT
2 stops12h 43m
Delta
Deal found 6/18![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/224:35 pm
ONT
- MKE
1 stop5h 20m
Southwest
Mon 7/275:15 am
MKE
- ONT
2 stops8h 05m
Southwest
Deal found 6/17![Southwest logo]()
$428
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:59 am
ONT
- GRB
1 stop8h 30m
Delta
Tue 10/612:30 pm
GRB
- ONT
2 stops11h 44m
Delta
Deal found 6/19![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Wed 8/56:03 am
MSP
- ONT
1 stop9h 06m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:00 am
ONT
- ORD
Nonstop4h 10m
United Airlines
Sat 10/317:55 pm
ORD
- ONT
Nonstop4h 31m
United Airlines
Deal found 6/16![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:05 pm
ONT
- MKE
1 stop7h 54m
Alaska Airlines
Tue 7/216:02 am
MKE
- ONT
1 stop9h 07m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$483
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1611:30 am
ONT
- MKE
1 stop8h 40m
Southwest
Sat 1/211:30 am
MKE
- ONT
1 stop8h 35m
Southwest
Deal found 6/19![Southwest logo]()
$443
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:00 pm
ONT
- MKE
1 stop9h 07m
Delta
Wed 7/292:59 pm
MKE
- ONT
1 stop8h 51m
Delta
Deal found 6/20![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:52 pm
ONT
- ORD
1 stop9h 05m
United Airlines
Thu 10/294:00 pm
ORD
- ONT
Nonstop4h 29m
United Airlines
Deal found 6/20![United Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/81:18 pm
ONT
- ORD
1 stop7h 31m
United Airlines
Sat 8/154:20 pm
ORD
- ONT
1 stop6h 33m
United Airlines
Deal found 6/19![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:00 pm
ONT
- MSP
1 stop5h 54m
Delta
Tue 8/258:20 pm
MSP
- ONT
1 stop5h 14m
Delta
Deal found 6/21![Delta logo]()
$380
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:59 pm
ONT
- CWA
2 stops18h 25m
American Airlines
Sun 8/96:00 am
CWA
- ONT
2 stops17h 55m
American Airlines
Deal found 6/20![American Airlines logo]()
$706
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:00 pm
ONT
- MKE
1 stop9h 53m
Delta
Sat 9/1212:45 pm
MKE
- ONT
1 stop7h 58m
Delta
Deal found 6/20![Delta logo]()
$382
Last-minute flights from Ontario to WisconsinDiscover last-minute flight deals from Ontario to Wisconsin. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wisconsin. Data last updated June 21, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Wed 7/2210:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/16![Frontier logo]()
$244
This Booking.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Sat 7/1110:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/16![Frontier logo]()
$273
This Frontier deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:49 am
ONT
- MSP
1 stop8h 38m
Frontier
Wed 7/151:16 pm
MSP
- ONT
1 stop12h 34m
Frontier
Deal found 6/17![Frontier logo]()
$270
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Wed 7/1510:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/20![Frontier logo]()
$277
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Wed 7/1510:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/20![Frontier logo]()
$276
This Expedia deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Tue 7/2110:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/19![Frontier logo]()
$257
This Expedia deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Sat 7/1810:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/20![Frontier logo]()
$275
This Frontier deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:49 am
ONT
- MSP
1 stop8h 38m
Frontier
Tue 8/41:16 pm
MSP
- ONT
1 stop12h 34m
Frontier
Deal found 6/17![Frontier logo]()
$247
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Wed 8/51:13 pm
MSP
- ONT
1 stop22h 51m
Frontier
Deal found 6/20![Frontier logo]()
$267
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:49 am
ONT
- MSP
1 stop8h 38m
Frontier
Wed 8/510:15 pm
MSP
- ONT
1 stop27h 35m
Frontier
Deal found 6/18![Frontier logo]()
$246
This CheapOair deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ONT
- MSP
1 stop13h 27m
Frontier
Sat 8/810:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/20![Frontier logo]()
$254
This Booking.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
ONT
- MSP
1 stop28h 21m
Frontier
Tue 8/410:15 pm
MSP
- ONT
1 stop13h 49m
Frontier
Deal found 6/16![Frontier logo]()
$259
One-way flights from Ontario to WisconsinSearch for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
Search for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:49 am
ONT
- ORD
1 stop8h 03m
Frontier
Deal found 6/20![Frontier logo]()
$108
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
ONT
- ORD
1 stop12h 52m
Frontier
Deal found 6/17![Frontier logo]()
$109
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:00 am
ONT
- ORD
1 stop12h 52m
Frontier
Deal found 6/20![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:37 am
ONT
- ORD
1 stop8h 38m
Frontier
Deal found 6/20![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:50 am
ONT
- ORD
1 stop8h 03m
Frontier
Deal found 6/18![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:38 am
ONT
- MSP
1 stop19h 20m
Frontier
Deal found 6/20![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
ONT
- ORD
1 stop13h 35m
Frontier
Deal found 6/19![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:32 am
ONT
- ORD
1 stop13h 17m
Frontier
Deal found 6/19![Frontier logo]()
$124
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:50 pm
ONT
- ORD
1 stop9h 09m
United Airlines
Deal found 6/20![United Airlines logo]()
$125
This Frontier deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/223:40 pm
ONT
- ORD
1 stop11h 57m
Frontier
Deal found 6/18![Frontier logo]()
$126
This Jettzy deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am
ONT
- ORD
1 stop13h 35m
Frontier
Deal found 6/16![Frontier logo]()
$127
This Booking.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
ONT
- MSP
1 stop28h 18m
Frontier
Deal found 6/18![Frontier logo]()
$128
Find flight deals from Ontario to Wisconsin
Keep the following information in mind while searching for Ontario to Wisconsin flight deals. Data was last updated June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $244 (Expedia) |
One-way from | $108 (Trip.com) |
Popular in | June |
Cheapest in | August |
Average price | $553 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Wisconsin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from Ontario to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Sun 8/9
10:49 am-7:10 pm
1 stop6h 21m
Madison Truax Field
Tue 8/11
7:55 pm-11:50 pm
1 stop5h 55m
$254
OntarioChicago
ONT - ORD
ONTORD
Ontario
Tue 7/14
6:10 am-12:25 pm
Nonstop4h 15m
Chicago O'Hare Intl
Tue 7/21
8:18 pm-10:51 pm
Nonstop4h 33m
$307
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Thu 8/13
10:49 am-7:10 pm
1 stop6h 21m
Madison Truax Field
Sun 8/16
7:55 pm-11:50 pm
1 stop5h 55m
$309
OntarioChicago
ONT - ORD
ONTORD
Ontario
Thu 8/20
1:06 pm-9:30 pm
1 stop6h 24m
Chicago O'Hare Intl
Mon 8/24
2:00 pm-10:45 pm
2 stops10h 45m
$322
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Tue 8/25
5:00 am-1:13 pm
1 stop6h 13m
Madison Truax Field
Sat 8/29
3:55 pm-10:35 pm
1 stop8h 40m
$331
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Tue 8/25
6:01 pm-8:16 am
2 stops12h 15m
Madison Truax Field
Sat 8/29
6:05 am-12:16 pm
2 stops8h 11m
$342
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Tue 8/18
12:00 pm-10:44 pm
1 stop8h 44m
Appleton Intl
Thu 8/27
5:31 am-10:42 am
1 stop7h 11m
$349
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Tue 8/18
12:00 pm-10:44 pm
1 stop8h 44m
Appleton Intl
Tue 9/1
5:31 am-10:42 am
1 stop7h 11m
$349
OntarioDuluth
ONT - DLH
ONTDLH
Ontario
Thu 10/22
10:59 pm-11:15 am
2 stops10h 16m
Duluth Intl
Mon 10/26
12:00 pm-10:43 pm
2 stops12h 43m
$349
OntarioGreen Bay
ONT - GRB
ONTGRB
Ontario
Thu 9/24
11:59 am-10:29 pm
1 stop8h 30m
Green Bay Austin-Straubel
Tue 10/6
12:30 pm-10:14 pm
2 stops11h 44m
$354
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Ontario with our price prediction graph.
ONT-MSP
ONT-ORD
ONT-MSN
ONT-MKE
ONT-CWA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Wisconsin
ONT-USWI
ONT-MSP
ONT-ORD
ONT-MSN
ONT-MKE
What is the cheapest month to book a flight from Ontario to Wisconsin?
Currently, June is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $156). Flying from Ontario to Wisconsin in February is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Wisconsin?
Reviews of airlines servicing Wisconsin
Get insights into the airlines that provide service to Wisconsin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wisconsin. Reviews last updated June 21, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Wisconsin. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
7.9
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Overall
7.9
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Wisconsin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Wisconsin
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Wisconsin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Wisconsin by cabin class
Find flights from Ontario to Wisconsin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Wisconsin flights
Browse other Ontario and Wisconsin flight options. Last updated on June 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Wisconsin flights
Consider these flights traveling from Ontario to Wisconsin.
Top 4 airlines flying from Ontario to Wisconsin
Discover the top 4 airlines that operate flights from Ontario to Wisconsin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$276 | Average$523 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$309 | Average$516 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$350 | Average$493 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$356 | Average$476 | FlexibilityNo cancel fee | On-timeN/A |